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Can You Use Different Size Hard Drives In A Qnap Nas? [Solved]

With QNAP you can use different drive typers (and even different sizes) - but you are limited to the size of the smallest drive in the array for the different RAID levels (unless you use JBOD which isn’t recommended).14 Dec 2014

Adding a Hard Drive to Your QNAP NAS

It also steps

How to Upgrade / Expand Your QNAP RAID to Larger Drives

In this video,

QNAP increase disk space with no data loss

When